(B) Read the profile of heatwaves and decide whether the sentences are true (T) or false (F). If the sentence is false, write the correct answer.Heatwaves: a closer lookA heatwave is a period of hotter-than-usual weather in an area. Heatwaves can last a few days or even weeks. They can be very dangerous. Every year, hundreds of thousands of people die in heatwaves.CausesHeatwaves are happening more often and becoming more harmful to people and the environment.• Climate change: As temperatures around the world rise, extreme heat is getting more common.• Urban heat island effect: Cities are usually a little hotter than nearby areas. This is because roads and buildings trap a lot of heat.A recent exampleHeatwaves can happen all over the world. In 2021, a very bad heatwave hit the Pacific Northwest area of North America. The heatwave broke temperature records in many cities in Canada and the USA. During the event, hundreds of people died. The heatwave also killed about one billion ocean animals and damaged crops.Safety tipsWe can’t prevent heatwaves, but we can protect ourselves when they happen.• Stay inside: On very hot days, it’s better to stay inside as much as possible.• Keep your homecool: Close windows and curtains during the day to keep heat out. Use fans or air conditioners to stay cool.• Drink water: Drink a lot of water to stay cool and healthy.Heatwaves are a serious problem. We need to be careful and protect ourselves.1 Heatwaves can last a few hours or days.2Climate change is one of the reasons why heatwaves are happening more often.3Roads and buildings trap heat, so cities are usually hotter than nearby areas.4In 2022, the Pacific Northwest heatwave hit many cities in Canada and the USA.5It’s better to open windows during the day to let fresh air in and cool down your home.
答案：【解析】：我们逐句对照原文内容判断正误：
1. 原文第一段明确说明热浪可以持续数天甚至数周，题干描述的“持续几小时或几天”和原文内容不符，因此判断为错。
2. 原文Causes板块指出气候变化让全球气温升高，极端高温变得更常见，是热浪发生更频繁的原因之一，和题干描述一致，因此判断为对。
3. 原文城市热岛效应部分说明城市通常比周边区域温度稍高，原因就是道路和建筑会留存大量热量，和题干描述完全吻合，因此判断为对。
4. 原文的近期案例部分提到袭击北美太平洋西北区域、打破加拿大和美国多座城市气温纪录的热浪发生在2021年，不是题干所说的2022年，时间表述错误，因此判断为错。
5. 原文安全提示部分明确说明白天要关闭窗户和窗帘阻挡热气进入来保持室内凉爽，和题干“白天开窗通风降温”的描述不符，因此判断为错。
【答案】：
1. F; 正确表述：Heatwaves can last a few days or even weeks.
2. T
3. T
4. F; 正确表述：In 2021, the Pacific Northwest heatwave hit many cities in Canada and the USA.
5. F; 正确表述：It's better to close windows and curtains during the day to keep heat out to cool down your home.
1. 原文第一段明确说明热浪可以持续数天甚至数周，题干描述的“持续几小时或几天”和原文内容不符，因此判断为错。
2. 原文Causes板块指出气候变化让全球气温升高，极端高温变得更常见，是热浪发生更频繁的原因之一，和题干描述一致，因此判断为对。
3. 原文城市热岛效应部分说明城市通常比周边区域温度稍高，原因就是道路和建筑会留存大量热量，和题干描述完全吻合，因此判断为对。
4. 原文的近期案例部分提到袭击北美太平洋西北区域、打破加拿大和美国多座城市气温纪录的热浪发生在2021年，不是题干所说的2022年，时间表述错误，因此判断为错。
5. 原文安全提示部分明确说明白天要关闭窗户和窗帘阻挡热气进入来保持室内凉爽，和题干“白天开窗通风降温”的描述不符，因此判断为错。
【答案】：
1. F; 正确表述：Heatwaves can last a few days or even weeks.
2. T
3. T
4. F; 正确表述：In 2021, the Pacific Northwest heatwave hit many cities in Canada and the USA.
5. F; 正确表述：It's better to close windows and curtains during the day to keep heat out to cool down your home.